Re:Actor system for the JVM developed by Electronic Arts
by galaxyLogic on Thursday April 28, 2022 @06:46PM
(#31199176)
> designate the behavior to be used for the next message it receives.
I think that is the key insight of actor-systems.
Actors don't have state. But they can calculate their replacement based on their immutable data. Thus the way an actor at a given address evolves is described by the functions that calculate the successor actors.
Thus you get Pure Functional Programming implemented on top of a fabric of
distributed evolving entities. You can understand the behavior and evolution of such a system as a composition of function-calls, where functions always produce
the same result for the same arguments.
I think that is the key insight of actor-systems.
Actors don't have state. But they can calculate their replacement based on their immutable data. Thus the way an actor at a given address evolves is described by the functions that calculate the successor actors.
Thus you get Pure Functional Programming implemented on top of a fabric of distributed evolving entities. You can understand the behavior and evolution of such a system as a composition of function-calls, where functions always produce the same result for the same arguments.